Average Co-Inventor Count = 4.29
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Ricoh Company, Ltd. (5 from 28,577 patents)
5 patents:
1. 7800771 - Digital copying machine, image formation system, and digital copying machine as slave machine
2. 7728997 - Digital copying machine, image formation system, and digital copying machine as slave machine
3. 7167256 - Digital copying machine image formation system, and digital copying machine as slave machine
4. 6226102 - Image forming apparatus which forms an image based on stored image data
5. 5987227 - Image forming apparatus and method for detecting and eliminating